Automobile-wheel.



c. RASMUSSBN. AUTOMOBILE WHEEL.

APPLICATION FILED DEG. 18, 1909. 965,539 v atented July 26,1910.

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fig j a 1/1. wgg W C. RASMUSSEN.

AUTOMOBILE WHEEL. APPLICATION TILED D3018, 1'909.

39, Patented July 26, 1910.

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CHAnnns BASMUSSENHOENEW HAVEN, CCNNECTICUT, Assm oR or ONE-HALF ro 7 ram. wearer-lemma, or NEW HAVEN, CoNNnC'nCu'r.

To all whom 'it may concern:

AUTOMOBILE-WHEEL.

Specification of Letterslatent. Patented July 26 1910.

Application filed December 18, 1909. Serial No. 533,786.

Be it known that I, CHARLES RAsMUssEN, a citizenof the United States, residing at New Haven, in the county of New Haven and State of Uonnecticut, have invented a new and useful Improvement in Automobile-Wheels; and I do hereby declare the may be demounted and replaced with thefollowing, when taken in connection with the accompanying drawings'and the numerals of re erence marked. thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this Specification, and 1'epresent,in Figure 1, a broken View in side elevation on a reduced scale of an automobile wheel constructed in accordance with my invention.

Fig. 2 .a view thereof .in transverse section turn the locking-cams. Fig; 6 a broken face view thereof. Fig. 7 a detached view in inside elevation of one of the locking cams.

My invention relates to an improvement in thatclass of automobile wheels the tires of which are mounted upon and demounted from the wheel rims by a simple lateral movement, the object being to provide durable and convenient means whereby a tire mlnimum amount of time and labor.

With these ends in view my invention ranged so as to support the c1ei1cher-rim 3 as it were upon points with .a space 6 between the inner face of the rim and an ron band 7 embracing the felly 8.-0f the. wheel.

The rim 3 is thus prevented by the narrow space 6 from commg in contact with theband 7 so that the rusting of these surfaces is prevented. This is important as one of "the difficulties heretofore experienced with laterally demountable automobile tires has been that in a few weeks time the parts rust together and prevent the easy demounting of the tire.

A description of one of the independently organized and operable locking-cams 5 will suflice for all. Each of these camsis formed in its inner facewith an internally threaded circular chamber 9 adapting the cam to be rotatably mounted upon the externally threaded projecting outer end of the long head 10 of a bolt 11 the threaded stem 12 of which projects through the flange 13 of the back-stop 4 and receives a nut 14; which bears upon the outer face of the said flange 13.

The said head 10 and bolt 11 are mounted in the folly 8 which is formed with a chamber 15 for the purpose. Under this construction the bolt 11 )rovides a mounting, on the one hand, for t e locking-cam 5, and, on the other hand, secures the back-stop 4 in place. Bfy preference, and as shown, the inner face 0' t e cam is broken into a series of facets to provide bearing-points l7 separated from each other b the width of the respective facets, where y each of the locking-cams 5 presents two of the-bearing-points 17 to outward for the engagement of its tapering 100 and toothed outer end 21 with the corresponding teethfiof a tapering opening 22 passing through the outer face of the cam 5 and intersecting the chamber 9 thereof.

The outer end of the plunger 18 is, exposed through the opening 22 as shown in Figs. 1

and 2. To unlock the cam the plunger is pushed inward against the tension of its s ring 20 by any convenient instrument un til the teeth uponthetapered end 21 have been entirely cleared from the teeth in the wall of the tapering opening 22, whereby the cam is freed for rotation which cannot,

however, be eflected except as sufficient force is employed to ride the high bearing-points 17 of the faceted inner face of the cam over the adjacent portions of the outer face of i the clencher-rim 4. As soon, however, as in- Ward thrust is removed from the plunger 18,

the spring 20 asserts itself and pushes the plunger outward wherebythe teeth upon its tapered outer end are rengaged with the teeth of the opening 22 in the cam 5, where-- and s aced in correspondence with the spacmg 0 the said pins 24- and 25 between which I locate a corresponding pin 28 adapted to enter the outer end of the said hole 22 and force the plunger 18 sufiiciently inward to entirely clear the teeth upon its outer end from the teeth of the hole 22. As soon as the wrench is removed from the cam, the spring -20 reass crts itself to restore the plunger 18 to its locked position. A. feather 29 upon' the plunger 18 enters a groove 30 leading out of the bore 19 and holds the plunger itself against rotation; The plunger in-turn holds the cam againstrotatlon and is assisted in that oflice by the action of the eleneher-rim 3 upon the bearing-points-IT upon the inner face of the cam.

The cams are constructed so that when rotated to bring their lowest points 31 outward, the clencher-ri n 3, and-hence the tire 2,will slide laterally over. them. For this reason the oint 31 may with propriety be called the emounting point of the cam. On

the other hand, when the cam is turned and its higher portion 32 brought into play, it not only supports the clencher-rim 3, butalso prevents its lateral movement in the direction of demounting, the action of the cam proper being to crowd the clencher-rim 3 laterally outward against the back-stop 4. Each cam will be turned more or less, of course, according to the fit of the parts in its particular locality, and as the cams are independently organized and operable, they will be turned and set as may be required to meet different conditions throughout the tire, very slight inequalities of construction, form or wear making it desirable that the cams shall be independently set in order to secure the beshresults.

Let it be supposed that it is desired to demount the tire 2 from the wheel: all of the cams 5 will be locked one by one and turned into their demounting positions after which [the tire will he slipped laterally inyvard over.

eeaese them. A? new tire is then slipped laterally outward over them until the outer edge of the clencher-rim rests upon the back-stops t as shown in Fig. 2. The cams will now be turned more orless as may be required to seat them firmly uppn the inner edgeof the clencher-rim 3, whereby the i'iin and hence the tire will, be supported and secured in place. Each of the locking-cams 5 is provided with a bearing-plate 33 formed with a circular opening'34for the outward passage through it-of the bolt head 10 and set into a recess 35 in the inner face of the telly 8 the ends of the said plate 33 being provided with perforated lugs 36 receiving bolts 37 passing through the telly and through the ends of the flange 13 of the back-stop, the projecting ends of the bolts being provided with nuts 38 asshown in Fig. 3,.

brought to a bearing upon the outer face of the flangeand thus assisting the bolt 11in holding the same in place;

1. In an automobile wheel, tion with the telly, tire and clen'eher-rim thereof, of a series of rotatable locking-cams carried by the telly and each cam having its inner face-provided with a curved series of facets for engagement with the said rim.

2. ln an automobile wheel, the ."combination with the felly, tire and clencher-riin thereof, of a series pf rotatable locking cams carried by the telly and adapted to engage with the clencher-rim, alocking plunger extending outwardly into" each cam for locking itagainst rotation, and means for supporting the plunger and holding it against rotation. I i

3. In an automobile wheel, the combination with the telly, tire and clencher-rini thereof, of a series of .bolts mounted transversely .in'the telly, a series of locking cams respectively mounted upon the said bolts, and plungers non-rotatably mounted in the said bolts'and engaging with the said cams for locking the same against rotation.

4. In an automobile wheel, the combination with the felly, tire and clencher-rim thereof, of a bolt mounted in the telly and provided with a long head projecting from the telly, externally threaded and having a longitudinal bore, a locking-cam rotatably mounted upon the said bolt, and a springactuated locking plunger mounted in the bore of the head of the bolt-and projecting outwardly through an opening in the cam with which it engages to hold the same against rotation.

5. In an automobile wheel, the combination with the telly, tire and clencher-rim thereof, of a series of bolts transversely mounted in the said felly, independent backstops and rotatable locking-cams respectively mounted upon the projectingends of the bolts, and spring-actuated non-rotatable the combinai looking-plungers mounted in the said bolts and extending outward therefrom into each cam from the inside thereof and operated through the outer face thereof for locking the cams against rotation.

6. In an automobile wheel, the combination with the felly thereof, of a rim demountable from the telly by sliding it laterally with respect thereto, a series of independently organized and operable cams carried by the felly and coacting with the rim for supporting it and retaining it in its mounted position, each of the said cams being formed with atoothed opening, and a spring actuated locking plunger extending into each cum from the inside thereof and formed at its outer end with teeth for coaction with the teeth of the opening-in the cam through which the plunger is pushed back to release the cam for its rotation.

In testimony whereof, I have signed this specification in the scribing witnesses.

CHARLES RASMUSSEN. \Vitnesses:

C. L. VVEED,

CLIFFORD J. REED.

presence of two sub- 

